A leading-one detector (LOD) is an electronic circuit commonly found in central processing units and especially their arithmetic logic units (ALUs). It is used to detect whether the leading bit in a computer word is 1 or 0,[1] especially for floating point operations[2] and binary logarithms.[3]

Reference

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  1. ^ Abed, K.H.; Siferd, R.E. (2006). "VLSI Implementations of Low-Power Leading-One Detector Circuits". Proceedings of the IEEE SoutheastCon 2006. pp. 279–284. doi:10.1109/second.2006.1629364. ISBN 1-4244-0168-2. S2CID 44226174. Retrieved 2023-11-03.
  2. ^ Kunaraj, K.; Seshasayanan, R. (2013). "Leading one detectors and leading one position detectors - An evolutionary design methodology". Canadian Journal of Electrical and Computer Engineering. 36 (3): 103–110. doi:10.1109/CJECE.2013.6704691. S2CID 15819610. Retrieved 2023-11-03.
  3. ^ Ansari, Mohammad Saeed; Gandhi, Shyama; Cockburn, Bruce F.; Han, Jie (2021-07-01). "Fast and low-power leading-one detectors for energy-efficient logarithmic computing". IET Computers & Digital Techniques. 15 (4): 241–250. doi:10.1049/cdt2.12019. ISSN 1751-8601. S2CID 231779697.